Picture flashes on and off,after it takes awhile to start

Doesn't sound good. Try unplugging it for awhile and then plug it in again. If it still isn't working take it for service or get a new TV.

check the power suply or the eprom and see if it help

how long does it take to start. this set is normal to take 90 seconds. after its off awhile does it take awhile. when you first plug it up it takes 80 second to boot,. the light will flash in the bootup. when you shut this set off the set has to go through cool down before it will come back on

hi
seems like you have power suply board problem
there may be a couple of capacitor that needs to be replace and eventualy it will no longer start

Is your camera getting overheated in the sun?

The flashing light is indicating an "over fueling" condition that can cause damage to the catalytic converter.
A defective or stuck injector is typically the root cause.
Take the vehicle to your local Auto Zone and ask to have the trouble codes read. Write the codes down and respond back to me, we can get started on fixing the issue.
Regards,

take it to an authorized samsung service center, your color wheel may be broken or your dmd maybe damage.

F3 is Open oven temperature sensor circuit, to fix this you need to read oven temperature sensor circuit at oven temperature sensor ( approx 1000 ohms at room temp); check for cut or pinched wire or loss of contact, if wirings are ok, then replace the probe.

Nope...mine does that also.............

Based on the settings that your camera is in, it is telling you that you are at risk of camera shake. This is just telling you that you can expect to see a blurry picture if you continue to take that picture and that it will slow down the shutter speed to achieve the proper exposure and that is why you are at risk of camera shake. The longer the shutter is open, the more chance that you are going to move so to solve this you have a few options:

• turn up ISO
• use tripod
• use flash

Hope this helps!